Assignee
Inventors
- Hisaakira Imaizumi (3 patents)
- Kanichi Kadotani (17 patents)
- Bunji Hayakashi (3 patents)
- Tetsuo Syakushi (1 patents)
- Toshihiko Matsumoto (13 patents)
- Genichiro Watanabe (5 patents)
- Toshihide Imamura (6 patents)
US Patent 5921088 · Granted Jul 13, 1999